BUG: MAX_LOCKDEP_CHAINS too low! turning off the locking correctness validator. CPU: 1 PID: 6203 Comm: kworker/1:0 Not tainted 5.15.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events async_pf_execute Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 add_chain_cache kernel/locking/lockdep.c:3637 [inline] lookup_chain_cache_add kernel/locking/lockdep.c:3736 [inline] validate_chain kernel/locking/lockdep.c:3757 [inline] __lock_acquire.cold+0x372/0x3ab kernel/locking/lockdep.c:5015 lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 do_write_seqcount_begin_nested include/linux/seqlock.h:520 [inline] do_write_seqcount_begin include/linux/seqlock.h:545 [inline] psi_group_change+0x135/0xc20 kernel/sched/psi.c:703 psi_task_switch+0x351/0x480 kernel/sched/psi.c:849 psi_sched_switch kernel/sched/stats.h:140 [inline] __schedule+0x179a/0x5960 kernel/sched/core.c:6282 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6459 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:35 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline] _raw_spin_unlock_irqrestore+0x57/0x70 kernel/locking/spinlock.c:194 rcu_report_unblock_qs_rnp kernel/rcu/tree.c:2260 [inline] rcu_preempt_deferred_qs_irqrestore+0x86e/0xb20 kernel/rcu/tree_plugin.h:552 rcu_read_unlock_special kernel/rcu/tree_plugin.h:669 [inline] __rcu_read_unlock+0x29c/0x570 kernel/rcu/tree_plugin.h:422 rcu_read_unlock include/linux/rcupdate.h:719 [inline] sock_def_readable+0x161/0x4e0 net/core/sock.c:3057 __netlink_sendskb net/netlink/af_netlink.c:1266 [inline] netlink_broadcast_deliver net/netlink/af_netlink.c:1398 [inline] do_one_broadcast net/netlink/af_netlink.c:1483 [inline] netlink_broadcast_filtered+0x8e3/0xdc0 net/netlink/af_netlink.c:1527 netlink_broadcast+0x35/0x40 net/netlink/af_netlink.c:1551 uevent_net_broadcast_untagged lib/kobject_uevent.c:331 [inline] kobject_uevent_net_broadcast lib/kobject_uevent.c:409 [inline] kobject_uevent_env+0xad0/0x1650 lib/kobject_uevent.c:593 kvm_uevent_notify_change.part.0+0x303/0x440 arch/x86/kvm/../../../virt/kvm/kvm_main.c:5357 kvm_uevent_notify_change arch/x86/kvm/../../../virt/kvm/kvm_main.c:5316 [inline] kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:1149 [inline] kvm_put_kvm+0xf6/0xc00 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1212 async_pf_execute+0x3a4/0x740 arch/x86/kvm/../../../virt/kvm/async_pf.c:91 process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 usb 3-1: USB disconnect, device number 59 usb 5-1: new high-speed USB device number 41 using dummy_hcd usb 5-1: Using ep0 maxpacket: 32 usb 5-1: New USB device found, idVendor=18d1, idProduct=1eaf, bcdDevice=7b.01 usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 5-1: Product: syz usb 5-1: Manufacturer: syz usb 5-1: SerialNumber: syz usb 5-1: config 0 descriptor?? usb 5-1: Cannot retrieve CPort count: 0 usb 5-1: Cannot retrieve CPort count: -5 es2_ap_driver: probe of 5-1:0.0 failed with error -5 usb 3-1: USB disconnect, device number 60